AN AFFILIATE OF THE LIFE SPAN INSTITUTE & THE DEPT. OF SPECIAL EDUCATION

PBS and ABA

Positive Behavior Support (PBS) and Applied Behavior Analysis (ABA)

Positive Behavior Support (PBS) and Applied Behavior Analysis (ABA) share a foundation in the science of behavior. Beginning in the 1950s, ABA had a major influence on the types and quality of services provided to people with developmental disabilities and challenging behavior. Based on principles established through basic laboratory research, behavior analysts demonstrated that positive, appropriate behavioral repertoires of people with developmental disabilities could be shaped, strengthened, and maintained by rearranging environmental contingencies.

PBS has its roots in ABA. ABA contributed a conceptual framework relative to behavior change and a number of assessment and intervention strategies that are cornerstones of PBS. However, central to PBS are additional features, such as:

  • Placing a high value on embracing person-centered planning approaches when addressing problem behaviors
  • Examining a broad range of variables affecting behavior
  • Making changes in natural life environments and multiple settings to influence behavior
  • Adopting non-aversive intervention techniques to help an individual change his/her behavior
  • Focusing on producing positive changes in quality of life for the individual with problem behavior and his/her family

An individual's problematic behavior in a natural environment is examined through a comprehensive assessment process, which can provide insight into why challenging behaviors occur; i.e., the function of the problem behavior. Assessment results are used to help design positive, proactive, and effective individualized interventions using evidence-based PBS strategies.